Distributing-roller for printing-presses.



No. 687,659. Patented Nov. 26,1901. 6. A. SCHRIVER.

DISTRIBUTING ROLLER FOR PRINTING PRESSES.

(Application filed Apr. 5, 1901.) (No Model.)

INVENTOI? UNITED STATES PATENT rrrcn.

GEORGE ALBERT SOHRIVER, OF BROOKLYN, NEl/V YORK, ASSIGNOR OF ONE-HALF TOALFRED H. SOHRIVER, OF BROOKLYN, NElV YORK.

DISTRIBUTING-ROLLER FOR PRlNTlNG-PRESSES.'

SPECIFICATION forming part of Letters Patent N 0. 687,659, datedNovember 26, 19-01. Application filed April 5, 1901. Serial No. 64,456.(No model.)

To ztZZ whom it may concern:

Be it known that I, GEORGE ALBERT Sonar- VER, a citizen of the UnitedStatesgand a resident of the city of New York, borough of Brooklyn, inthe county of Kings and State of New York, have invented a new andImproved Distributing-Roller for Printing-Presses, of which thefollowing is a full, clear, and exact description.

The object of the invention is to provide certain new and usefulimprovements in printof a distributing-roller F, and a similar rollering-presses to insure a thorough and equal distribution of the ink onthe inking-rollers.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

A practical embodiment of the invention is represented in theaccompanying drawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding partsin all theviews.

Figurel is a front elevation of the improvement as applied. Fig. 2 is aside elevation of the same. Fig. 3 is an enlarged front view of thedistributing-roller mounted 011 a spin dle, parts being shown insection. Fig. 4 is a plan view of the bearing for the distributingrollerand its. support, and Fig. 5 is an enlarged front elevation of amodified form of the improvement.

Inking-rollers A A A of usual construction are journaled in aninking-roller frame B, connected by a link (J with an arm D on arock-shaft E, so that when the printing-press is actuated areciprocating movement is given to the frame B, and thus theinking-rollers A A A are supplied with ink and distribute the same overthe type in the usual manner. The peripheral surfaces of theinking-rollers A A are engaged by the peripheral surface F engages therollers A A Each of the rollers F F is mounted to turn and to slidelengthwise on a spindle G, having its flattened end G loosely engagingan elongated slot in a head H of a bearing H, .yieldingly mounted on asupport I, fastened by a set-screw J to the inking-roller frame B, as isplainly illustrated in Fig. 2. Each bearing H is pressed on by a springH resting with one end on the support I and with its other end on a pinH carried in the bearing H. Thus the spring H serves to pull on thebearing H and draw the spindle G and the distributing-roller F or Finward to hold the said distributing-rollers in firm contact with theinking-rollers A A Plus G are secured in the flattened ends G of thespindles G inside of the bearings H to hold the spindles againstmovement in the direction of their length.

On the inside of each distributing-roller F F is formed a nut F engaginga screw-thread G on the corresponding spindle G, so that when the pressis in operation and the inkingrollers A A A 'rotate then a correspondingrotary motion is given to the distributingrollers F F, and by the nuts Fand the threads G the said distributing-rollers are moved in thedirection of their length, so that a further uniform and equaldistribution of the ink on the inking-rollers A A" A is had. The threadsG and the nuts F of the rollers F F extend in opposite directions, sothat when the press is in motion then the distributing-rollers F Ftravel in opposite directions to their length to insure a perfectdistribution of the ink on the inking-rollers.

In one end of each of the distributing-r011- ers F F is arranged aspring K, pressing with one end against a collar or flange F in theouterend of the corresponding roller, so as to insure a ready returnmovement of the roller F or F in case the nuts F have moved out ofengagement with the threads G at the time the distributing-roller F or Fhas trav eled to an extreme outermost position on the correspondingspindle G. The flattened ends of the spindles G have movement in theheads H of the spring-pressed bearings to allow the distributing-rollersto readily adjust themselves relatively to the inking-rollers A A and AA The above-mentioned collar or flange F besides serving as a stop forthe spring K acts also as a journal-bearing, whereby the inkcylinder issupported upon the spindle G and is properly spaced therefronn Thisfeature is very important, because as the threads become worn by use theinking-cylinder normally tends to leave its proper position, and shouldtherefore be held in place by some additional part independently of thethreads.

Moreover, this collar or bearing is easily replaced when worn out andsaves the more expensive parts from excessive wear. It is lubricatedlike any other hearing.

The connection between the spindle and its hearing may be differentlyarranged-for instance, as shown in Fig. 5, by having the flattened end iof the spindle formed with an elongated slot G through which extends abolt L, carried by a support I, fastened to the inking-roller frame B bythe set-screw J.

It is evident from the foregoing that the means for moving thedistributing-roller in the direction of its length on the correspondingspindle G are completely out of sight, as they are contained within thedistributingroller, and the means are not liable to get out of order. Itwill further be seen that by the construction set forth the spindles areheld against movement in the direction of their length and cams and likedevices heretofore employed for shifting the distributing-rollers bodilywith their spindles are entirely dispensed with, and said spindles arefree to yield, so as to readily hold the distributingrollers in propercontact with the inking-rollers. By having the supports I removablyconnected with the inking-roller frames it is evident that my device canbe readily applied to any existing machine or removed therefrom wheneverdesired.

Having thus fully described my invention, I claimas new and desire tosecure by Letters Patentl. Inaprinting-presshavinginking-rollers, adistributing-roller comprising two concentric members, one fixed and theother free to rotate, and a spring engaging both of said members, as andfor the purpose set forth.

2. In a printing-press, a composite distributing-roller comprising acentral spindle fixed against rotation, an outer cylinder threaded uponsaid spindle, a journal-bearing between said spindle and said cylinder,and a spring engaging said spindle and said cylinder.

3. A printing-press havinginking-rollers, a distributing-roller inperipheral contact with the inkingrollers, a spindle held againstmovement in the direction of its length and on which the saiddistributing-roller is mounted to turn and to slide in the direction ofits length, means between the distributing-roller and its spindle, tocause the distributingroller to travel in the direction of its lengthwhen rotated by said inking-rollers, and bearings held on theinking-roller frame and engaged by the ends of said spindle, saidbearings having elongated openings for the flattened ends of the spindleto slide in, as set forth.

4. A printing-press havinginking-rollers, a distributing-roller inperipheral contact with the inking rollers, a spindle held againstmovement in the direction of its length and on which the saiddistributing-roller is mounted to turn and to slide in the direction ofits length, means between the distributing-roller and its spindle, tocause the distributingroller to travel in the direction of its lengthwhen rotated by said inking-rollers, bearings for the ends of thespindles, supports on the inking-roller frame, and springs pressing thehearings to hold the distributing-roller in firm contact with theinking-rollers, as set forth.

5. Inaprinting-presshavinginking-rollers, a compositedistributing-roller comprising two concentric members providedrespectively with male and female threads, a journal-bearing connectingsaid members independently of said threads, and a resilient memberadapted to hold said concentric memhere in a position where the saidthreads will engage each other, substantially as described.

6. A printing-press having inking-rollers, a distributing-roller inperipheral contact with the inkingrollers, a spindle held againstmovement in the direction of its length and on which the saiddistributing-roller is mounted to turn and to slide in the direction ofits length, and means between the distributingroller and its spindle, tocause the distributing-roller to travel in the direction of its lengthwhen rotated by said inking-rollers, said means comprising a thread onthe spindle, a nut on the distributing-roller, and a spring in thedistributing-roller, for pressing the latter in the direction of itslength, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

GEORGE ALBERT SOHRIVER.

Witnesses:

SPENCER M. SCHRIVER, WILLIAM J. DRIVER.

